School librarians--also called school media specialists or teacher librarians--play a powerful and essential role: promoting school-wide cultures of literacy, partnering with teachers to enhance learning, propelling students toward lifelong reading habits, and establishing transformative learning spaces rich with print and digital resources. Schools that fully embrace school librarians gain collaborators who support school-wide technology initiatives and champion students' rights to read. Three key tenets are necessary to create atmospheres in which school librarians are viewed as essential literacy partners and educational leaders: (1) Librarians as collaborators; (2) Librarians as advocates of literacy equity; and (3) Librarians as providers of access. When schools advocate for well-funded school libraries that are staffed with full-time certified librarians, they commit to meaningful collaboration between classroom teachers and school librarians--and advance students' basic rights to read.